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Phylogenetic analysis of spruce sHSP. The tree was derived by Neighbor-Joining method with bootstrap analysis (1,000 replicates) from alignment of amino acid sequences of sHSP of rice, Arabidopsis, and poplar. Bootstrap values higher than 50% are shown next to the branches. Phylogenetic analyses were conducted in MEGA4. EST clones ID of Picea are indicated in bold and underlined. Downregulated sHSP are indicated by a closed black circle.
